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title: "Tesla Powerwall 3 — buyer's dossier (WA)" description: "AC/AIO storage with mature app ecosystem: warranty, AU support, serviceability and WA checks." lastUpdated: "27 Feb 2026" brand: "Tesla" model: "Powerwall 3"

Tesla Powerwall 3 — buyer's dossier (WA)

1) What it is

An AC/AIO battery known for retrofit flexibility and an established app experience.

2) Manufacturing & lineage

Large global fleet and multi-gen lineage; steady feature evolution.

3) AU presence & service

Wide installer familiarity; strong community knowledge. Confirm lead times in peak seasons.

4) Warranty mechanics

10-year style with clear capacity retention & cycle/throughput conditions; warranty PDFs are model/SKU specific.

5) Serviceability & install notes

• Retrofit simplicity; tidy with existing string micro-inverters.
• Backup scope well understood; confirm continuous/surge and switchgear.

6) Firmware cadence & ecosystem

Regular updates; app offers scheduling, backup reserve, and VPP toggles in supported regions.

7) Installer sentiment (synthesis)

High user satisfaction when sized to night load; availability spikes can create wait times.

8) WA readiness checks

• ✅ Approved-product entry for PW3 SKU
• ✅ Solution readiness for incentives/VPP where required
• ✅ Accredited installer; documented backup/export settings

9) Who it suits / skip

• Suits: Retrofits, backup-centric briefs, one-box simplicity.
• Skip: Ultra-tight outdoor sites without an enclosure option.